The advice to developers is to ignore the concept of the Document Outline, simply because it has not been implemented in user agents and because of this, has a detrimental effect on users of AT.

ralphm
—
2013-10-28T13:16:13Z —
#2

Yes, it's funny to read articles, books and so on extolling the new semantics, when in fact they don't exist, because browsers and ATs for the most part ignore them. According to The Truth About HTML5, the creator of HTML5 doesn't think those semantics will ever be implemented, and also doesn't care!

Stomme_poes
—
2013-10-29T12:14:57Z —
#3

I think, for the syndication use case, it's rather sad that it's not implemented. There was an attempt in IE...

Francky
—
2013-11-01T22:25:13Z —
#4

To illustrate the browser behavior at this moment, I made 3 testpages: the good, the bad and the ugly.